In an image rendering system, a method of compensating for system
performance changes related to image attributes includes rendering a
diagnostic image, sensing at least one image quality from the diagnostic
image, updating an image attribute compensation tone reproduction curve
based on the sensed image quality and rendering an image based on the
updated image attribute compensation tone reproduction curve. For
example, image attributes include print media type and a halftone screen
selection. An image processing system operative to perform the method of
compensation includes a set of image attribute compensation tone
reproduction curves. Each curve of the set is associated with a
particular combination of image attributes. For example, each curve is
associated with a particular media type/halftone screen combination.